Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
  • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
  • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
  • B01D35/30—Filter housing constructions
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
  • F01M1/00—Pressure lubrication
  • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
  • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
  • F01M11/0004—Oilsumps
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
  • F01M1/00—Pressure lubrication
  • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
  • F01M2001/105—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements
  • F01M2001/1092—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements comprising valves bypassing the filter
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
  • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
  • F01M11/0004—Oilsumps
  • F01M2011/0029—Oilsumps with oil filters

Definitions

• the present invention relates to a motor vehicle, comprising an oil filter of simplified geometry.
• An oil filter is generally placed in a lubrication circuit for moving parts of an internal combustion engine forming a closed oil circulation loop.
• This filter receives oil from an upstream branch of this lubrication circuit, which is generally equipped with an oil pump, and evacuates the filtered oil to a downstream branch of said lubrication circuit, which is in communication fluidics with the moving parts of the engine to be lubricated.
• a conventional oil filter is in the form of a complete and independent housing, comprising a filter cartridge sheathed in a generally metallic body.
• the housing comprises a body of generally cylindrical shape, and a bottom which rests on a component of the engine, which may be a lower crankcase containing an oil reserve for lubricating the engine.
• the oil filter is supplied with oil thanks to an oil pump actuated by the engine from the lower crankcase, and said filter returns the filtered oil to the engine parts to be lubricated.
• the complete block representing the oil filter is equipped with a screw thread to be mounted on a tube in the lower engine crankcase, through which the filtered oil will come out. The oil enters this block through a plurality of holes in the bottom of the filter. The bottom of the oil filter is fitted with a gasket to ensure a seal with the lower engine crankcase.
• the oil filter generally includes bypass means in the form of a relief valve (or "by-pass"), which ensures the circulation of the oil through the oil filter, without passing through the filter cartridge in in the event that it is clogged. It may also include a check valve to prevent oil from flowing back to the oil pump.
• the oil filter is not easily reusable when the filter cartridge is clogged and clogged, because in this case it is necessary to change the entire oil filter, remaining a long and expensive operation,
• the upstream branch of the lubrication circuit which is generally equipped with an oil pump and the downstream branch of said lubrication circuit used to convey the filtered oil to the moving parts of the engine to be lubricated, must be integrated into the casting of the crankcase of oil, leading to the production of complex and expensive shapes in said foundry.
• Publication FR2789729-B1 discloses an oil filtration housing comprising a cylindrical body, a bottom and a cover joined by a central rod, the bottom comprising an inlet nozzle and an outlet nozzle.
• the base and the cover are made of plastic parts, which are molded and have central metal inserts with central threaded bores, connected to the threaded rod at both ends.
• the body is made of light zamac type alloy.
• a vehicle equipped with an engine comprises a lubrication circuit intended to lubricate moving parts of the engine, while overcoming the disadvantages encountered in existing lubrication circuits.
• the subject of the invention is a vehicle comprising an internal combustion engine and a lubrication circuit intended to lubricate moving parts of the engine, said engine comprising a lower oil pan and said lubrication circuit being provided with a oil filter mounted in said crankcase.
• the oil filter comprises a rigid non-metallic body, a filter cartridge housed in the rigid body and a non-metallic cover, the rigid body having a lower end zone which is covered by the cover, and an upper end zone provided with a first tip which is inserted in an upstream segment of the lubrication circuit intended to supply the filter with oil, said upper zone being provided with a second tip which is inserted in a downstream segment of the lubrication circuit intended to convey the filtered oil to the engine parts to be lubricated.
• the filter oil closes the lubrication circuit by connecting directly to both the upstream segment and the downstream segment of said lubrication circuit.
• the oil will move into the upstream segment before entering the oil filter through the first end.
• the oil then passes through the filter cartridge where it is cleaned before exiting said oil filter through the second end to be sent via the downstream segment towards moving parts of the engine to be lubricated.
• the filter cartridge is located in the oil path in the oil filter, between the first tip and the second tip. There is fluid communication between the first tip and the second tip inside the oil filter, in which the filter cartridge participates.
• the body and the cover are lighter than if they had been made of metal.
• the first end piece and the second end piece are parallel and extend vertically.
• the cover once it has been fixed to the body of the oil filter, is located under said body and closes it. To change the filter cartridge, simply remove the cover from the body, then grab the used cartridge before removing it manually and effortlessly from the rigid body. A new cartridge is then inserted without any particular effort into the rigid body of the oil filter, in the location of the used cartridge, then the cover is closed on the body.
• the cover can for example be screwed onto the body or clipped to it.
• the cover and the body can be made from the same material.
• the upstream segment of the lubrication circuit is provided with an oil pump capable of circulating the oil towards the oil filter.
• the body extends vertically, the cover representing the lowest part of the oil filter, the first end piece and the second end piece representing the highest part of said oil filter.
• the cover is flush with a wall of the oil pan or emerges slightly from said wall downwards.
• the first tip and the second tip are integral with the rigid body. In this way, the body and the two end pieces constitute a common resulting part, which is manufactured in a single operation.
• a first sealing element is inserted between the first end piece and a wall delimiting the upstream segment of the lubrication circuit, and a second sealing element is inserted between the second end piece and a wall delimiting the downstream segment of the lubrication circuit. It is essential to ensure a good seal between the lubrication circuit and the oil filter, otherwise there will be oil leaks between these two elements, which could lead to excess oil consumption or engine malfunction.
• the first sealing element and the second sealing element can for example be represented by O-rings.
• the lower end zone of the rigid body of the oil filter ends in an enlarged flange bearing against a lower face of the lower casing, said enlarged flange having at least one orifice through which passes a fixing screw ensuring the securing of the rigid body of the oil filter to the lower crankcase of the engine.
• the body of the oil filter is made of plastic material. In this way, it helps to lighten the vehicle compared to a metal body. In addition, it can be handled more easily. Finally, it can advantageously have elastic deformation capabilities, which can facilitate its insertion into the oil pan, as well as the insertion of the first end piece and the second end piece respectively in the upstream segment and the downstream segment of the lubrication circuit.
• the cover and the body of the oil filter each have a thread, so that the cover is screwed to said body while being inside it.
• the cover can for example have a cylindrical section, threaded on an exterior face, and one end of which is closed by a solid circular wall making it possible to cover the rigid body of the oil filter.
• the cover is made of plastic material.
• This plastic material may be identical or different from that of the oil filter body.
• This cover helps to lighten the vehicle. Being light, the lid can be handled easily, without having to develop any particular strength. If the oil filter cover is accessed from underneath the vehicle, the cover can be easily attached or removed.
• the oil filter comprises a bypass valve placed between the first end piece and the second end piece, said bypass valve allowing the oil from the upstream segment of the lubrication circuit to pass through the oil filter to end up in the downstream segment of said lubrication circuit without passing through the filter cartridge.
• the filter cartridge is clogged with waste or other undesirable particles, and in this case, the oil would be blocked in the oil filter by this filter cartridge and would therefore no longer be able to circulate in said oil filter.
• the bypass valve ensures continuous circulation of oil in the oil filter, when the filter cartridge is clogged, avoiding a critical situation in which the circulation of oil would be interrupted in said filter and could lead to a bursting of said oil filter.
• Another object of the invention is an oil filter for producing a vehicle according to the invention.
• the oil filter comprises a rigid body made of plastic material, a filter cartridge housed in the rigid body, a bypass valve and a plastic cover which is screwed onto said body, the rigid body comprising a first end piece materializing an oil inlet into said oil filter, and a second end piece materializing an oil outlet from said filter.
• a filter is thus directly ready for use, being able to be mounted as is, directly in an oil sump of an internal combustion engine of a vehicle according to the invention. It will be inserted directly into a lubrication circuit for moving parts of the engine, by connecting to the upstream segment and downstream segment of this lubrication circuit.
• a motor vehicle according to the invention has the advantage of having a lightweight oil filter thus contributing to reducing the weight of said vehicle.
• the oil filter is designed in a simplified manner, in particular to allow an individual to be able to easily change the filter cartridge in the event that it is clogged, this cartridge change being carried out without particular effort, with tools standard of commerce. It should be noted that this change is carried out without having to intervene in any way whatsoever, to the structure of the oil filter.
• a vehicle according to the invention finally has the advantage of having an oil filter which easily connects to the lubrication circuit, by means of a simple introduction of the first end piece into the upstream segment of the lubrication circuit and a simple introduction of the second end piece in the downstream segment of said lubrication circuit.
• FIG. 1 is a perspective view of the underside of a vehicle according to the invention, showing a lower engine casing and an oil filter according to the invention,
• FIG. 2 is a perspective view from another angle of the underside of the vehicle of Figure 1, the oil filter cover being screwed onto it,
• FIG. 3 is a perspective view of the underside of the vehicle of Figure 2, the cover of the oil filter being unscrewed and at a distance from said oil filter,
• FIG. 4 is a perspective view of a particular area under the vehicle of Figure 3, showing a filter cartridge at a distance from the oil filter,

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=81927437

Family Applications (1)

Country Status (4)

Families Citing this family (1)

Citations (1)

Family Cites Families (6)

• 2022
  • 2022-03-22 FR FR2202547A patent/FR3133888B1/fr active Active
• 2023
  • 2023-03-13 CN CN202380029241.6A patent/CN118974382A/zh active Pending
  • 2023-03-13 EP EP23711700.7A patent/EP4496940B1/de active Active
  • 2023-03-13 WO PCT/EP2023/056368 patent/WO2023180117A1/fr not_active Ceased

Patent Citations (2)

Non-Patent Citations (1)

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